قائمة الدول حسب الإنفاق على البحث والتطوير: الفرق بين النسختين

| style="text-align:center;"| <ref name="RDMAG">[http://www.rdmag.com/articles/2011/12/2012-global-r-d-funding-forecast-r-d-spending-growth-continues-while-globalization-accelerates 2012 Global R & D Funding Forecast: R & D Spending Growth Continues While Globalization Accelerates<!-- Bot generated title -->] {{Webarchive|url=https://web.archive.org/web/20160303233945/http://www.rdmag.com/articles/2011/12/2012-global-r-d-funding-forecast-r-d-spending-growth-continues-while-globalization-accelerates |date=03 مارس 2016}}</ref><ref name="Nature Publishing Index">{{مرجع ويب| مسار = http://www.natureasia.com/en/publishing-index/pdf/NPI2012_Global.pdf#page=26| عنوان =| مسار الأرشيف = https://web.archive.org/web/20191004075128/http://www.natureasia.com/en/publishing-index/pdf/NPI2012_Global.pdf | تاريخ الأرشيف = 4 أكتوبر 2019 }}</ref>

| style="text-align:center;"| <ref name="UNESCO">{{مرجع ويب| مسار = http://unesdoc.unesco.org/images/0018/001899/189958E.pdf| عنوان =| مسار الأرشيف = https://web.archive.org/web/20180926124516/http://unesdoc.unesco.org/images/0018/001899/189958e.pdf | تاريخ الأرشيف = 26 سبتمبر 2018 }}</ref>